wcf - 通过 ssl 验证的自定义 WCF 客户端证书

Question

你好，

我正在尝试使用 WCF 进行一些身份验证:

• 使用用户名/密码验证用户
• 使用客户端证书对客户端进行身份验证
• 自定义接受哪些根证书

经过反复试验，我设法让第 1 点和第 2 点正常工作，但我卡在了第 3 点。这是我的服务配置

<system.serviceModel>
    <behaviors>
        <endpointBehaviors />
        <serviceBehaviors>
            <behavior name="MyBehavior">
                <serviceCredentials>
                    <userNameAuthentication userNamePasswordValidationMode="Custom"
                                            customUserNamePasswordValidatorType="WcfService1.CustomValidator, WcfService1" />
                </serviceCredentials>                    
                <serviceMetadata httpsGetEnabled="true" httpGetEnabled="false" />
                <serviceDebug includeExceptionDetailInFaults="true" />
            </behavior>
        </serviceBehaviors>
    </behaviors>
    <bindings>
        <customBinding>
            <binding name="certificate">
                <security authenticationMode="UserNameOverTransport" />
                <textMessageEncoding messageVersion="Soap12WSAddressing10" />
                <httpsTransport requireClientCertificate="true" />
            </binding>
        </customBinding>
    </bindings>
    <services>
        <service behaviorConfiguration="MyBehavior" name="WcfService1.Service1">
            <endpoint address="" binding="customBinding" bindingConfiguration="certificate"
                      contract="WcfService1.IService1" />
        </service>
    </services>
</system.serviceModel>

这是我的客户端配置

    <client>
        <endpoint name="service1" address="https://localhost:443/WcfService1/Service1.svc" binding="customBinding"
                  bindingConfiguration="certificate" behaviorConfiguration="certificate" contract="WcfService1.IService1" />
    </client>
    <behaviors>
        <endpointBehaviors>
            <behavior name="certificate">
                <clientCredentials>
                    <clientCertificate storeName="My" storeLocation="LocalMachine" x509FindType="FindBySubjectName"
                                       findValue="SignedByCA" />
                </clientCredentials>
            </behavior>
        </endpointBehaviors>
        <serviceBehaviors />
    </behaviors>
    <bindings>
        <customBinding>
            <binding name="certificate">
                <security authenticationMode="UserNameOverTransport" />
                <textMessageEncoding messageVersion="Soap12WSAddressing10" />
                <httpsTransport requireClientCertificate="true" />
            </binding>
        </customBinding>
    </bindings>

使用客户端并附加用户名凭证效果很好

var channelFactory = new ChannelFactory<IService1>("service1");
var user = channelFactory.Credentials.UserName;
user.UserName = username;
user.Password = password;

使用 OperationContext.Current.ServiceSecurityContext.AuthorizationContext.ClaimSets 让我可以访问用户名以及证书的名称和指纹。遗憾的是，我无法找到证书的 IssuerName。我还能如何禁止没有特定根证书颁发的证书的客户端？

非常欢迎任何指向正确方向或任何替代方案的提示；)

谢谢

Answer 1

实际上，这很容易，但是很麻烦。授权上下文中有一个身份列表。

OperationContext.Current.ServiceSecurityContext
.AuthorizationContext.Properties["Identities"]

其中一个是 X509Identity 类型。那个是 System.IdentityModel 内部的，您不能直接获取它。

identity.GetType().Name == "X509Identity"

这并不重要，因为无论如何，包含证书的字段是私有(private)的:)

var field = identity.GetType().GetField(
    "certificate", 
    BindingFlags.GetField | BindingFlags.Instance | BindingFlags.NonPublic);
var certificate = (X509Certificate2) field.GetValue(identity);
string issuer = certificate.Issuer;